Lexmark T522 Service Manual - Page 240
Duplex Unit Board
UPC - 734646620642
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4520-xxx Duplex Unit Board Note: Duplex connectors J10 and J11 are interchangeable. No problem results if the connectors are switched. Connector J1 Motor J2 DC Motor Sensor/Encoder Board J3 Stepper Motor J4 Fan J5 Paper Input Sensor J6 Rear Cover Open Switch J7 Jam Removal Tray Open Switch J8 Paper Exit Sensor Pin No. 1 2 1 2 3 1 2 3 4 1 2 1 2 3 1 2 1 2 1 2 3 Signal Motor Motor + +5 V dc Sensor Tach + Ground STPMOTA STPMOTA + STPMOTB STPMOTB + +24 V dc Fan On +5 V dc Sensor Input + Ground Top Cover Open + Ground Front Drawer Open + Ground +5 V dc Sensor Exit + Ground 5-18 Service Manual
5-18
Service Manual
4520-xxx
Duplex Unit Board
Note:
Duplex connectors J10 and J11 are interchangeable. No
problem results if the connectors are switched.
Connector
Pin No.
Signal
J1 Motor
1
Motor -
2
Motor +
J2 DC Motor
Sensor/Encoder Board
1
+5 V dc Sensor
2
Tach +
3
Ground
J3 Stepper Motor
1
STPMOTA -
2
STPMOTA +
3
STPMOTB -
4
STPMOTB +
J4 Fan
1
+24 V dc
2
Fan On -
J5 Paper Input Sensor
1
+5 V dc Sensor
2
Input +
3
Ground
J6 Rear Cover Open Switch
1
Top Cover Open +
2
Ground
J7 Jam Removal Tray Open
Switch
1
Front Drawer Open +
2
Ground
J8 Paper Exit Sensor
1
+5 V dc Sensor
2
Exit +
3
Ground